Description

Dip strip directly into aquarium and swirl two times. Remove horizontally with pads facing up. Do not shake off excess water. Compare to the color chart on the tube. Starting with the pad closest to your hand, immediately read General Hardness (GH) and Carbonate Hardness (KH). Wait 30 seconds, then read pH, Nitrite, and Nitrate. Keep wet fingers out of tube. Close tube tightly after removing strip. Store in a cool, dry place. For best results, read in a well-lit area.